/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-atomic/szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 16:44:26,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 16:44:26,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 16:44:26,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 16:44:26,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 16:44:26,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 16:44:26,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 16:44:26,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 16:44:26,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 16:44:26,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 16:44:26,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 16:44:26,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 16:44:26,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 16:44:26,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 16:44:26,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 16:44:26,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 16:44:26,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 16:44:26,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 16:44:26,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 16:44:26,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 16:44:26,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 16:44:26,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 16:44:26,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 16:44:26,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 16:44:26,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 16:44:26,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 16:44:26,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 16:44:26,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 16:44:26,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 16:44:26,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 16:44:26,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 16:44:26,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 16:44:26,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 16:44:26,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 16:44:26,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 16:44:26,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 16:44:26,211 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 16:44:26,234 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 16:44:26,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 16:44:26,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 16:44:26,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 16:44:26,236 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 16:44:26,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 16:44:26,237 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 16:44:26,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 16:44:26,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 16:44:26,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 16:44:26,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 16:44:26,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 16:44:26,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 16:44:26,238 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 16:44:26,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 16:44:26,238 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 16:44:26,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 16:44:26,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 16:44:26,239 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 16:44:26,239 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 16:44:26,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 16:44:26,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 16:44:26,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 16:44:26,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 16:44:26,240 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 16:44:26,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 16:44:26,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 16:44:26,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 16:44:26,241 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 16:44:26,241 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 16:44:26,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 16:44:26,559 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 16:44:26,563 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 16:44:26,564 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 16:44:26,565 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 16:44:26,565 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2020-10-15 16:44:26,634 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5acea0d50/545c7feba930431094b95f5f8db2dd0d/FLAGa4acfe68a [2020-10-15 16:44:27,189 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 16:44:27,190 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2020-10-15 16:44:27,208 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5acea0d50/545c7feba930431094b95f5f8db2dd0d/FLAGa4acfe68a [2020-10-15 16:44:27,458 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5acea0d50/545c7feba930431094b95f5f8db2dd0d [2020-10-15 16:44:27,469 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 16:44:27,471 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 16:44:27,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 16:44:27,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 16:44:27,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 16:44:27,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:44:27" (1/1) ... [2020-10-15 16:44:27,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cd63d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:27, skipping insertion in model container [2020-10-15 16:44:27,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:44:27" (1/1) ... [2020-10-15 16:44:27,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 16:44:27,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 16:44:27,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 16:44:28,019 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 16:44:28,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 16:44:28,163 INFO L208 MainTranslator]: Completed translation [2020-10-15 16:44:28,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:28 WrapperNode [2020-10-15 16:44:28,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 16:44:28,164 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 16:44:28,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 16:44:28,165 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 16:44:28,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:28" (1/1) ... [2020-10-15 16:44:28,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:28" (1/1) ... [2020-10-15 16:44:28,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 16:44:28,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 16:44:28,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 16:44:28,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 16:44:28,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:28" (1/1) ... [2020-10-15 16:44:28,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:28" (1/1) ... [2020-10-15 16:44:28,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:28" (1/1) ... [2020-10-15 16:44:28,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:28" (1/1) ... [2020-10-15 16:44:28,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:28" (1/1) ... [2020-10-15 16:44:28,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:28" (1/1) ... [2020-10-15 16:44:28,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:28" (1/1) ... [2020-10-15 16:44:28,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 16:44:28,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 16:44:28,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 16:44:28,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 16:44:28,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 16:44:28,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 16:44:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-10-15 16:44:28,407 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-10-15 16:44:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-15 16:44:28,407 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-15 16:44:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 16:44:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 16:44:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 16:44:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 16:44:28,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 16:44:28,412 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 16:44:28,821 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 16:44:28,821 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-10-15 16:44:28,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:44:28 BoogieIcfgContainer [2020-10-15 16:44:28,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 16:44:28,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 16:44:28,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 16:44:28,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 16:44:28,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:44:27" (1/3) ... [2020-10-15 16:44:28,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b1ba154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:44:28, skipping insertion in model container [2020-10-15 16:44:28,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:28" (2/3) ... [2020-10-15 16:44:28,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b1ba154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:44:28, skipping insertion in model container [2020-10-15 16:44:28,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:44:28" (3/3) ... [2020-10-15 16:44:28,833 INFO L111 eAbstractionObserver]: Analyzing ICFG szymanski.i [2020-10-15 16:44:28,846 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 16:44:28,846 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 16:44:28,855 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-15 16:44:28,856 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 16:44:28,883 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:44:28,883 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:44:28,884 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:44:28,884 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:44:28,885 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:44:28,886 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:44:28,886 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:44:28,887 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:44:28,887 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:44:28,887 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:44:28,888 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:44:28,889 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:44:28,892 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:44:28,893 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:44:28,893 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:44:28,893 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:44:28,900 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:44:28,900 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:44:28,901 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:44:28,901 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:44:28,923 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-15 16:44:28,942 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 16:44:28,942 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 16:44:28,942 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 16:44:28,942 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 16:44:28,943 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 16:44:28,943 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 16:44:28,943 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 16:44:28,943 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 16:44:28,956 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 16:44:28,959 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 87 transitions, 196 flow [2020-10-15 16:44:28,961 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 87 transitions, 196 flow [2020-10-15 16:44:28,963 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 72 places, 87 transitions, 196 flow [2020-10-15 16:44:29,006 INFO L129 PetriNetUnfolder]: 21/87 cut-off events. [2020-10-15 16:44:29,007 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-15 16:44:29,014 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 87 events. 21/87 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 65. Up to 3 conditions per place. [2020-10-15 16:44:29,019 INFO L117 LiptonReduction]: Number of co-enabled transitions 2160 [2020-10-15 16:44:30,076 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-10-15 16:44:30,167 INFO L132 LiptonReduction]: Checked pairs total: 5431 [2020-10-15 16:44:30,168 INFO L134 LiptonReduction]: Total number of compositions: 40 [2020-10-15 16:44:30,177 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 59 transitions, 140 flow [2020-10-15 16:44:30,240 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 509 states. [2020-10-15 16:44:30,244 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states. [2020-10-15 16:44:30,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 16:44:30,274 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:44:30,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:44:30,276 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:44:30,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:44:30,284 INFO L82 PathProgramCache]: Analyzing trace with hash -223988154, now seen corresponding path program 1 times [2020-10-15 16:44:30,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:44:30,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93326265] [2020-10-15 16:44:30,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:44:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:44:30,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:44:30,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93326265] [2020-10-15 16:44:30,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:44:30,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 16:44:30,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458916563] [2020-10-15 16:44:30,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 16:44:30,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:44:30,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 16:44:30,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 16:44:30,568 INFO L87 Difference]: Start difference. First operand 509 states. Second operand 2 states. [2020-10-15 16:44:30,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:44:30,634 INFO L93 Difference]: Finished difference Result 509 states and 1466 transitions. [2020-10-15 16:44:30,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 16:44:30,636 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-15 16:44:30,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:44:30,671 INFO L225 Difference]: With dead ends: 509 [2020-10-15 16:44:30,672 INFO L226 Difference]: Without dead ends: 470 [2020-10-15 16:44:30,673 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 16:44:30,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-10-15 16:44:30,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2020-10-15 16:44:30,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2020-10-15 16:44:30,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 1363 transitions. [2020-10-15 16:44:30,764 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 1363 transitions. Word has length 8 [2020-10-15 16:44:30,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:44:30,764 INFO L481 AbstractCegarLoop]: Abstraction has 470 states and 1363 transitions. [2020-10-15 16:44:30,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 16:44:30,765 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 1363 transitions. [2020-10-15 16:44:30,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 16:44:30,766 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:44:30,767 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:44:30,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 16:44:30,767 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:44:30,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:44:30,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1417283260, now seen corresponding path program 1 times [2020-10-15 16:44:30,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:44:30,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988136486] [2020-10-15 16:44:30,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:44:30,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:44:30,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:44:30,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988136486] [2020-10-15 16:44:30,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:44:30,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 16:44:30,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145629149] [2020-10-15 16:44:30,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:44:30,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:44:30,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:44:30,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:44:30,846 INFO L87 Difference]: Start difference. First operand 470 states and 1363 transitions. Second operand 3 states. [2020-10-15 16:44:30,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:44:30,877 INFO L93 Difference]: Finished difference Result 481 states and 1359 transitions. [2020-10-15 16:44:30,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:44:30,878 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-15 16:44:30,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:44:30,882 INFO L225 Difference]: With dead ends: 481 [2020-10-15 16:44:30,882 INFO L226 Difference]: Without dead ends: 391 [2020-10-15 16:44:30,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:44:30,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2020-10-15 16:44:30,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 373. [2020-10-15 16:44:30,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-10-15 16:44:30,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 1071 transitions. [2020-10-15 16:44:30,907 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 1071 transitions. Word has length 10 [2020-10-15 16:44:30,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:44:30,908 INFO L481 AbstractCegarLoop]: Abstraction has 373 states and 1071 transitions. [2020-10-15 16:44:30,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 16:44:30,908 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 1071 transitions. [2020-10-15 16:44:30,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 16:44:30,910 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:44:30,910 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:44:30,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 16:44:30,911 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:44:30,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:44:30,911 INFO L82 PathProgramCache]: Analyzing trace with hash -2015895147, now seen corresponding path program 1 times [2020-10-15 16:44:30,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:44:30,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008786004] [2020-10-15 16:44:30,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:44:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:44:30,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:44:30,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008786004] [2020-10-15 16:44:30,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:44:30,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 16:44:30,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164066565] [2020-10-15 16:44:30,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:44:30,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:44:30,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:44:30,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:44:30,993 INFO L87 Difference]: Start difference. First operand 373 states and 1071 transitions. Second operand 3 states. [2020-10-15 16:44:31,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:44:31,015 INFO L93 Difference]: Finished difference Result 360 states and 1018 transitions. [2020-10-15 16:44:31,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:44:31,015 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-15 16:44:31,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:44:31,018 INFO L225 Difference]: With dead ends: 360 [2020-10-15 16:44:31,018 INFO L226 Difference]: Without dead ends: 264 [2020-10-15 16:44:31,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:44:31,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-10-15 16:44:31,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2020-10-15 16:44:31,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-10-15 16:44:31,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 749 transitions. [2020-10-15 16:44:31,030 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 749 transitions. Word has length 12 [2020-10-15 16:44:31,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:44:31,032 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 749 transitions. [2020-10-15 16:44:31,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 16:44:31,032 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 749 transitions. [2020-10-15 16:44:31,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 16:44:31,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:44:31,035 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:44:31,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 16:44:31,035 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:44:31,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:44:31,036 INFO L82 PathProgramCache]: Analyzing trace with hash 573136511, now seen corresponding path program 1 times [2020-10-15 16:44:31,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:44:31,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561083122] [2020-10-15 16:44:31,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:44:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:44:31,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:44:31,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561083122] [2020-10-15 16:44:31,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:44:31,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 16:44:31,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153503511] [2020-10-15 16:44:31,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:44:31,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:44:31,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:44:31,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:44:31,075 INFO L87 Difference]: Start difference. First operand 264 states and 749 transitions. Second operand 3 states. [2020-10-15 16:44:31,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:44:31,120 INFO L93 Difference]: Finished difference Result 292 states and 809 transitions. [2020-10-15 16:44:31,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:44:31,121 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-15 16:44:31,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:44:31,123 INFO L225 Difference]: With dead ends: 292 [2020-10-15 16:44:31,123 INFO L226 Difference]: Without dead ends: 280 [2020-10-15 16:44:31,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:44:31,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-10-15 16:44:31,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2020-10-15 16:44:31,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-10-15 16:44:31,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 773 transitions. [2020-10-15 16:44:31,134 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 773 transitions. Word has length 19 [2020-10-15 16:44:31,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:44:31,134 INFO L481 AbstractCegarLoop]: Abstraction has 280 states and 773 transitions. [2020-10-15 16:44:31,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 16:44:31,135 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 773 transitions. [2020-10-15 16:44:31,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 16:44:31,137 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:44:31,137 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:44:31,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 16:44:31,137 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:44:31,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:44:31,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1551241601, now seen corresponding path program 2 times [2020-10-15 16:44:31,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:44:31,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128776631] [2020-10-15 16:44:31,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:44:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:44:31,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:44:31,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128776631] [2020-10-15 16:44:31,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:44:31,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 16:44:31,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817359141] [2020-10-15 16:44:31,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:44:31,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:44:31,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:44:31,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:44:31,171 INFO L87 Difference]: Start difference. First operand 280 states and 773 transitions. Second operand 3 states. [2020-10-15 16:44:31,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:44:31,211 INFO L93 Difference]: Finished difference Result 312 states and 828 transitions. [2020-10-15 16:44:31,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:44:31,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-15 16:44:31,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:44:31,213 INFO L225 Difference]: With dead ends: 312 [2020-10-15 16:44:31,213 INFO L226 Difference]: Without dead ends: 230 [2020-10-15 16:44:31,214 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:44:31,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-15 16:44:31,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 226. [2020-10-15 16:44:31,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-15 16:44:31,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 555 transitions. [2020-10-15 16:44:31,222 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 555 transitions. Word has length 19 [2020-10-15 16:44:31,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:44:31,223 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 555 transitions. [2020-10-15 16:44:31,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 16:44:31,223 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 555 transitions. [2020-10-15 16:44:31,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 16:44:31,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:44:31,225 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:44:31,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 16:44:31,225 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:44:31,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:44:31,226 INFO L82 PathProgramCache]: Analyzing trace with hash 926221059, now seen corresponding path program 3 times [2020-10-15 16:44:31,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:44:31,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721565416] [2020-10-15 16:44:31,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:44:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:44:31,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:44:31,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721565416] [2020-10-15 16:44:31,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:44:31,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 16:44:31,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988210034] [2020-10-15 16:44:31,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:44:31,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:44:31,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:44:31,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:44:31,265 INFO L87 Difference]: Start difference. First operand 226 states and 555 transitions. Second operand 3 states. [2020-10-15 16:44:31,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:44:31,302 INFO L93 Difference]: Finished difference Result 210 states and 499 transitions. [2020-10-15 16:44:31,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:44:31,302 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-15 16:44:31,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:44:31,304 INFO L225 Difference]: With dead ends: 210 [2020-10-15 16:44:31,304 INFO L226 Difference]: Without dead ends: 210 [2020-10-15 16:44:31,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:44:31,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-10-15 16:44:31,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2020-10-15 16:44:31,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-10-15 16:44:31,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 499 transitions. [2020-10-15 16:44:31,312 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 499 transitions. Word has length 19 [2020-10-15 16:44:31,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:44:31,312 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 499 transitions. [2020-10-15 16:44:31,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 16:44:31,313 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 499 transitions. [2020-10-15 16:44:31,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 16:44:31,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:44:31,314 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:44:31,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 16:44:31,314 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:44:31,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:44:31,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1185214475, now seen corresponding path program 4 times [2020-10-15 16:44:31,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:44:31,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696702585] [2020-10-15 16:44:31,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:44:31,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:44:31,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:44:31,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696702585] [2020-10-15 16:44:31,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:44:31,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 16:44:31,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375833258] [2020-10-15 16:44:31,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:44:31,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:44:31,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:44:31,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:44:31,344 INFO L87 Difference]: Start difference. First operand 210 states and 499 transitions. Second operand 3 states. [2020-10-15 16:44:31,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:44:31,368 INFO L93 Difference]: Finished difference Result 160 states and 390 transitions. [2020-10-15 16:44:31,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:44:31,368 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-15 16:44:31,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:44:31,369 INFO L225 Difference]: With dead ends: 160 [2020-10-15 16:44:31,369 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 16:44:31,369 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:44:31,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 16:44:31,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 16:44:31,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 16:44:31,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 16:44:31,371 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-15 16:44:31,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:44:31,371 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 16:44:31,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 16:44:31,371 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 16:44:31,372 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 16:44:31,372 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 16:44:31,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:44:31 BasicIcfg [2020-10-15 16:44:31,376 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 16:44:31,378 INFO L168 Benchmark]: Toolchain (without parser) took 3907.48 ms. Allocated memory was 246.4 MB in the beginning and 351.3 MB in the end (delta: 104.9 MB). Free memory was 201.8 MB in the beginning and 166.6 MB in the end (delta: 35.1 MB). Peak memory consumption was 140.0 MB. Max. memory is 14.2 GB. [2020-10-15 16:44:31,379 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 246.4 MB. Free memory is still 222.8 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 16:44:31,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 691.92 ms. Allocated memory was 246.4 MB in the beginning and 299.4 MB in the end (delta: 53.0 MB). Free memory was 201.8 MB in the beginning and 257.3 MB in the end (delta: -55.6 MB). Peak memory consumption was 32.7 MB. Max. memory is 14.2 GB. [2020-10-15 16:44:31,381 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.62 ms. Allocated memory is still 299.4 MB. Free memory was 257.3 MB in the beginning and 254.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.2 GB. [2020-10-15 16:44:31,382 INFO L168 Benchmark]: Boogie Preprocessor took 71.15 ms. Allocated memory is still 299.4 MB. Free memory was 254.7 MB in the beginning and 252.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 16:44:31,382 INFO L168 Benchmark]: RCFGBuilder took 500.94 ms. Allocated memory is still 299.4 MB. Free memory was 252.2 MB in the beginning and 230.4 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-15 16:44:31,383 INFO L168 Benchmark]: TraceAbstraction took 2551.17 ms. Allocated memory was 299.4 MB in the beginning and 351.3 MB in the end (delta: 51.9 MB). Free memory was 230.4 MB in the beginning and 166.6 MB in the end (delta: 63.7 MB). Peak memory consumption was 115.6 MB. Max. memory is 14.2 GB. [2020-10-15 16:44:31,388 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 246.4 MB. Free memory is still 222.8 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 691.92 ms. Allocated memory was 246.4 MB in the beginning and 299.4 MB in the end (delta: 53.0 MB). Free memory was 201.8 MB in the beginning and 257.3 MB in the end (delta: -55.6 MB). Peak memory consumption was 32.7 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 86.62 ms. Allocated memory is still 299.4 MB. Free memory was 257.3 MB in the beginning and 254.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 71.15 ms. Allocated memory is still 299.4 MB. Free memory was 254.7 MB in the beginning and 252.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 500.94 ms. Allocated memory is still 299.4 MB. Free memory was 252.2 MB in the beginning and 230.4 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2551.17 ms. Allocated memory was 299.4 MB in the beginning and 351.3 MB in the end (delta: 51.9 MB). Free memory was 230.4 MB in the beginning and 166.6 MB in the end (delta: 63.7 MB). Peak memory consumption was 115.6 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 968 VarBasedMoverChecksPositive, 93 VarBasedMoverChecksNegative, 63 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 343 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.2s, 72 PlacesBefore, 46 PlacesAfterwards, 87 TransitionsBefore, 59 TransitionsAfterwards, 2160 CoEnabledTransitionPairs, 4 FixpointIterations, 16 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 40 TotalNumberOfCompositions, 5431 MoverChecksTotal - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 686]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 66 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 367 SDtfs, 133 SDslu, 141 SDs, 0 SdLazy, 82 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=509occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 2127 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...